Cuba reconnected its national electrical grid and restored power to the majority of the capital Havana by late on Sunday, energy officials said, nearly two days after an island-wide outage knocked out power to 10 million people.

Cuba restored power to most of Havana after a nationwide outage affected 10 million people. The grid collapse was triggered by a shorted transmission line. Oil-fired plants are back online, yet Cuba faces ongoing energy issues due to outdated infrastructure and geopolitical tensions.

Cuba‘s electric grid collapsed late Friday leading to a nationwide power outage and leaving millions in the dark. At around 8:15 p.m., an outage at the Diezmero substation in Havana caused “a significant loss of generation in western Cuba and,